I'm not opposed to running the vex out of the pack, but I tend to move a lot, so that's where my head is at, trying to keep it so I can just grab the pack handle and auger to bounce around holes. I will be looking for a lighter battery, but the vex battery isn't really that bad, this is more to get rid of the sled.
The auger needs some work, I took it out initially and the blade walked around a bit until it grabbed, so I built a centering point on it, will have to get pictures of how I did that. And the other mods I did to it to make sure it doesn't fall down the hole. Anyway, yesterday at the mile, the centering point proved to be too much point and it would not dig like it did last weekend before I built a point in.